all-in-one diaper

noun1

1. •
   (US, Canada) A type of cloth diaper that most closely resembles a disposable diaper; a diaper with a waterproof cover and absorbent inner layer that does not require diaper inserts.

   • Also for cloth users, todays all-in-one diaper and diaper cover combinations use Velcro or snaps instead of pins. Their outer covers dry quickly and can be used more than once. — 1994